It is September 1940.As the Germans stand ready to invade, Blackpool parties on like the end of the world is at hand. Anything goes. A Babylon by the sea. Amongst the madness, the debauchery and the drunkenness, a serial killer looms large. It is down to two men, chief Inspector Sydney Appleton and Detective Harry Carter to keep the peace and find the murderer. And so a tale of intrigue, espionage and treachery explodes. One that leads us into a darkness few could imagine. Where there is no good or bad. Just a desperation to survive. An era when so many young men were not blessed with the privilege of old age. When once upon a time in Blackpool, the fate of World War two was ultimately decided by a father's love, and one man's desire to do the right thing.